feat: add multi-distro RPM packaging for CentOS 7 and Rocky Linux 8/9/10

- Create RPM maintainer scripts (post, preun, postun)
- Add Docker build stages for each target distribution (el7, el8, el9, el10)
- Update architecture.yml with supported RPM distributions
- Update build.sh to extract distro-specific RPM packages

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

packaging/rpm/post

@@ -0,0 +1,50 @@
+#!/bin/bash
+# post script for logcorrelator RPM package
+# Compatible with CentOS 7, Rocky Linux 8, 9, 10
+
+set -e
+
+# Create logcorrelator user and group
+if ! getent group logcorrelator >/dev/null 2>&1; then
+    groupadd --system logcorrelator
+fi
+
+if ! getent passwd logcorrelator >/dev/null 2>&1; then
+    useradd --system \
+        --gid logcorrelator \
+        --home-dir /var/lib/logcorrelator \
+        --no-create-home \
+        --shell /usr/sbin/nologin \
+        logcorrelator
+fi
+
+# Create directories
+mkdir -p /var/lib/logcorrelator
+mkdir -p /var/log/logcorrelator
+mkdir -p /var/run/logcorrelator
+
+# Set ownership
+chown -R logcorrelator:logcorrelator /var/lib/logcorrelator
+chown -R logcorrelator:logcorrelator /var/log/logcorrelator
+chown -R logcorrelator:logcorrelator /var/run/logcorrelator
+chown -R logcorrelator:logcorrelator /etc/logcorrelator
+
+# Set permissions
+chmod 750 /var/lib/logcorrelator
+chmod 750 /var/log/logcorrelator
+chmod 750 /etc/logcorrelator
+
+# Copy default config if not exists
+if [ ! -f /etc/logcorrelator/logcorrelator.yml ]; then
+    cp /usr/share/logcorrelator/logcorrelator.yml.example /etc/logcorrelator/logcorrelator.yml
+    chown logcorrelator:logcorrelator /etc/logcorrelator/logcorrelator.yml
+    chmod 640 /etc/logcorrelator/logcorrelator.yml
+fi
+
+# Reload systemd
+if [ -x /bin/systemctl ]; then
+    systemctl daemon-reload
+    systemctl enable logcorrelator.service
+fi
+
+exit 0